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74LVC2952A Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
Product specification 1998 Jul 29
Philips Semiconductors
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
74LVC2952A
FEATURES
* 5-volt tolerant inputs/outputs, for interfacing with 5-volt logic * Wide supply voltage range of 1.2 V to 3.6 V * In accordance with the JEDEC standard no. 8-1 A * Inputs accept voltages up to 5.5 V * CMOS low power consumption * Flow-through pin-out architecture * 3-State outputs * Direct interface with TTL levels * Integrated 30W damping resistor
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25C; tr =tf 2.5 ns SYMBOL tPHL/tPLH fmax CI CI/O CPD PARAMETER Propagation delay CPnn to An, Bn Maximum clock frequency Input capacitance Input/output capacitance Power dissipation capacitance per buffer VCC = 3.3V1
DESCRIPTION
The 74LVC2952A is a low-power, low-voltage, Si-gate CMOS device and superior to most advanced CMOS compatible TTL families. The 74LVC2952A is an octal non-inverting registered transceiver. Two 8-bit back to back registers store data flowing in both directions between two bidirectional busses. Data applied to the inputs is entered and stored on the rising edge of the clock (CPnn) provided that the clock enable CEnn) is LOW. The data is then present at the 3-State output buffers, but is only accessible when the output enable input (OEnn) is LOW. Data flow from A inputs to B outputs is the same as for B inputs to A outputs. The 74LVC2952A is identical to the 74LVC2953A but has non-inverting outputs.
CONDITIONS CL = 50 pF; VCC = 3.3 V
TYPICAL 4.3 150 5 10 31
UNIT ns MHz pF pF pF
NOTE: 1 CPD is used to determine the dynamic power dissipation (PD in W) PD = CPD x VCC2 x fi ) (CL x VCC2 x fo) where: fi = input frequency in MHz; CL = output load capacity in pF; fo = output frequency in MHz; VCC = supply voltage in V; (CL x VCC2 x fo) = sum of the outputs.
ORDERING INFORMATION
PACKAGES 24-Pin Plastic SO 24-Pin Plastic SSOP Type II 24-Pin Plastic TSSOP Type I TEMPERATURE RANGE -40C to +125C -40C to +125C -40C to +125C OUTSIDE NORTH AMERICA 74LVC2952A D 74LVC2952A DB 74LVC2952A PW NORTH AMERICA 74LVC2952A D 74LVC2952A DB 74LVC2952APW DH PKG. DWG. # SOT137-1 SOT340-1 SOT355-1
PIN CONFIGURATION
B7 1 B6 2 B5 3 B4 4 B3 5 B2 6 B1 7 B0 8 OEAB 9 CPAB 10 CEAB 11 GND 12 24 VCC 23 A7 22 A6 21 A5 20 A4 19 A3 18 A2 17 A1 16 A0 15 OEBA 14 CPBA 13 CEBA
PIN DESCRIPTION
PIN NUMBER 8, 7, 6, 5, 4, 3, 2, 1, 12 9, 15 10, 14 11, 13, 16, 17, 18, 19, 20, 21, 22, 23 24
SV01716
SYMBOL B0 to B7 GND OEAB,OEBA CPAB, CPBA CEAB, CEBA A0 to A7 VCC
FUNCTION B data inputs/outputs Ground (0 V) Output enable inputs (active LOW) Clock inputs Clock enable inputs A data inputs/outputs Positive supply voltage
1998 Jul 29
2
853-1993 19803
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
74LVC2952A
LOGIC SYMBOL (IEEE/IEC)
9 OE AB
FUNCTIONAL DIAGRAM
16 CP BA CE BA B0 B1 B2 B3 B4 B5 B6 14 13 8 7 6 22 5 4 3 2 1 9 15 11 13 10 OE AB OE BA CE AB CE BA CP AB CP BA 23 17 18 19 20 21 A0 A1 A2 A3 A4 A5 A6 A7 B0 B1 B2 B3 B4 B5 B6 B7 8 7 6 5 4 3 2 1
10 11 16 17 18 19 20 21 22 23
CP AB CE AB A0 A1 A2 A3 A4 A5 A6 A7
OE BA 15
B7
SV01717
14
LOGIC SYMBOL
14 10 13 11 15 9 1 C5 2 C6 G1 G2 EN3 EN4 8
SV01719
16
3 6D
1 1
5D 4
17 18 19 20 21 22 23
7 6 5 4 3 2 1
SV01718
1998 Jul 29
3
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
74LVC2952A
FUNCTION TABLE for register An or Bn
INPUTS An or Bn X L H CPnn X CEnn H L L INTERNAL Q NC L H OPERATING MODE Hold data Load data Load data
FUNCTION TABLE for output enable
INPUTS OEnn H L L Z= = NC = INTERNAL Q X L H An or Bn OUTPUTS Z L H OPERATING MODE Disable outputs Enable outputs Enable outputs
NOTES: H = HIGH voltage level L = LOW voltage level X = don't care
high impedance OFF-state Low-to-High transition no change
RECOMMENDED OPERATING CONDITIONS
SYMBOL VCC VI VI/O Tamb tr, tf PARAMETER DC supply voltage (for max. speed performance) DC supply voltage (for low-voltage applications) DC input voltage range DC output voltage range; output HIGH or LOW state DC input voltage range; output 3-State Operating free-air temperature range Input rise and fall times VCC = 1.2 to 2.7V VCC = 2.7 to 3.6V CONDITIONS LIMITS MIN 2.7 1.2 0 0 0 -40 0 0 MAX 3.6 3.6 5.5 VCC 5.5 +85 20 10 UNIT V V V C ns/V
ABSOLUTE MAXIMUM RATINGS1
In accordance with the Absolute Maximum Rating System (IEC 134). Voltages are referenced to GND (ground = 0 V). SYMBOL VCC IIK VI IOK VI/O IO IGND, ICC Tstg PTOT PARAMETER DC supply voltage DC input diode current DC input voltage DC output diode current DC output voltage; output HIGH or LOW DC output voltage; output 3-State DC output source or sink current DC VCC or GND current Storage temperature range Power dissipation per package - plastic mini-pack (SO) - plastic shrink mini-pack (SSOP and TSSOP) above +70C derate linearly with 8 mW/K above +60C derate linearly with 5.5 mW/K VI t 0 Note 2 VO uVCC or VO t 0 Note 2 Note 2 VO = 0 to VCC CONDITIONS RATING -0.5 to +6.5 -50 -0.5 to +6.5 "50 -0.5 to VCC +0.5 -0.5 to 6.5 "50 "100 -65 to +150 500 500 UNIT V mA V mA V mA mA C
mW
NOTES: 1 Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2 The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1998 Jul 29
4
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
74LVC2952A
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions voltages are referenced to GND (ground = 0V) LIMITS SYMBOL PARAMETER TEST CONDITIONS Temp = -40C to +85C MIN VIH HIGH level Input voltage VCC = 1.2V VCC = 2.7 to 3.6V LOW level Input voltage VCC = 1.2V VCC = 2.7 to 3.6V VCC = 2.7V; VI = VIH or VIL; IO = -12mA VO OH HIGH level output voltage VCC = 3 0V; VI = VIH or VIL; IO = -100A 100A 3.0V; VCC = 3.0V; VI = VIH or VIL; IO = -18mA VCC = 3.0V; VI = VIH or VIL; IO = -24mA VCC = 2.7V; VI = VIH or VIL; IO = 12mA VOL LOW level output voltage VCC = 3.0V; VI = VIH or VIL; IO = 100A VCC = 3.0V; VI = VIH or VIL; IO = 24mA II IIHZ/IILZ IOZ Ioff ICC ICC Input leakage current Input current for common I/O pins 3-State output OFF-state current Power off leakage supply Quiescent supply current Additional quiescent supply current per input pin VCC = 3.6V; VI = 5.5V or GND VCC = 3.6V; VI = 5.5V or GND VCC = 3.6V; VI = VIH or VIL; VO = 5.5V or GND VCC = 0.0V; VI or VO = 5.5V VCC = 3.6V; VI = VCC or GND; IO = 0 VCC = 2.7V to 3.6V; VI = VCC -0.6V; IO = 0 0.1 5 Not for I/O pins "0.1 "0.1 0.1 VCC*0.5 VCC*0.2 02 VCC*0.6 VCC*0.8 0.40 0.20 0.55 "5 "15 "5 "10 10 500 A A A A A A V VCC V VCC 2.0 GND V 0.8 V TYP1 MAX V UNIT
VIL
NOTES: 1 All typical values are at VCC = 3.3V and Tamb = 25C.
AC CHARACTERISTICS
GND = 0 V; tr = tf v 2.5 ns; CL = 50 pF; RL = 500W LIMITS SYMBOL PARAMETER Propagation delay CPBA, CPAB to An, Bn 3-state output enable time OEBA, OEAB, to An, Bn 3-state output disable time OEBA, OEAB, to An, Bn CPAB, CPBA pulse width, HIGH or LOW Set-up time HIGH or LOW An, Bn to CPAB, CPBA Set-up time, HIGH or LOW CEAB, CEBA to CPAB, CPBA Hold time An, Bn to CPAB, CPBA Hold time CEAB, CEBA to CPAB, CPBA Maximum clock pulse frequency WAVEFORM VCC = 3.3V 0.3V MIN tPHL/tPLH tPZH/tPZL tPHZ/tPLZ tw tsu tsu th th fmax Figures 1, 4 Figures 3, 4 Figures 3, 4 Figure 1 Figure 2 Figure 2 Figure 2 Figure 2 Figure 2 1.5 1.5 1.5 3.0 2.0 2.0 1.5 1.5 100 TYP 4.1 3.9 3.4 1.5 -0.5 0.5 0.6 0 150 MAX 7.6 7.6 6.6 - - - - - - MIN 1.5 1.5 1.5 3.0 2.0 2.0 1.5 1.5 80 VCC = 2.7V TYP 4.4 4.7 3.8 1.5 - - - - - MAX 8.6 8.6 7.6 - - - - - - VCC = 1.2V TYP 16 16 8 - - - - - - ns ns ns ns ns ns ns ns MHz UNIT
NOTE: These typical values are at VCC = 3.3V and Tamb = 25C.
1998 Jul 29
5
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
74LVC2952A
AC WAVEFORMS
VM = 0.6 V at VCC = 1.2 V VM = 1.0 V at VCC = 2.0 V VM = 1.5 V at VCC = 3.0 V VOL and VOH are the typical output voltage drop that occur with the 3-State output load.
1/fmax VI CPXX INPUT GND tW tPHL VOH An, Bn OUTPUT VOL VM tPLH VM
TEST CIRCUIT
VCC S1 2 x VCC Open GND
PULSE GENERATOR
VI D.U.T. RT
VO
500
CL
50pF
500
Test VCC t 2.7V 2.7V - 3.6V VI VCC 2.7V tPLH/tPHL tPLZ/tPZL tPHZ/tPZH
S1 Open 2 x VCC GND
SY00003 SV01720
Figure 4. Load circuitry for switching times.
Figure 1. Clock input (CPBA, CPAB) to output (Bn, An) propagation delays, the clock pulse width and the maximum clock frequency.
VI An, Bn, CEnn INPUT GND th tsu VI CPXX INPUT GND VM tsu th VM
SV01721
Figure 2. Set-up and hold times for the An, Bn and CEnn inputs. NOTE: The shaded areas indicate when the input is permitted to change for predictable output performance
VI CPXX INPUT GND tPLZ VCC OUTPUT LOW-to-OFF OFF-to-LOW VOL tPHZ VOH OUTPUT HIGH-to-OFF OFF-to-HIGH GND VX VM outputs enabled outputs disabled outputs enabled tPZL VM VY tPZH VM
SV01722
Figure 3. 3-State enable and disable times.
1998 Jul 29
6
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
74LVC2952A
SO24: plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
1998 Jul 29
7
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
74LVC2952A
SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm
SOT340-1
1998 Jul 29
8
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
74LVC2952A
TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm
SOT355-1
1998 Jul 29
9
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
74LVC2952A
NOTES
1998 Jul 29
10
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant inputs/ouputs (3-State)
74LVC2952A
Data sheet status
Data sheet status Objective specification Preliminary specification Product specification Product status Development Qualification Definition [1] This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make chages at any time without notice in order to improve design and supply the best possible product. This data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product.
Production
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes -- Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088-3409 Telephone 800-234-7381 (c) Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. print code Document order number: Date of release: 08-98 9397-750-04524
Philips Semiconductors
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